We provide the first complete analysis of cosmological evolution in the Randall-Sundrum model with stabilized dilaton. We give the exact expansion law for matter densities on the two branes with arbitrary equations of state. The effective four-dimensional theory leads to standard cosmology at low energy. The limit of validity of the low energy theory and possible deviations from the ordinary expansion law in the high energy regime are finally discussed. (C) 2000 Elsevier Science B.V.
|Original language||English (US)|
|Number of pages||9|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|State||Published - Sep 21 2000|
Bibliographical noteFunding Information:
We would like to thank Jussi Kalkkinen for useful discussions. J.L. and S.P. are supported by INFN and by the European Commission under TMR network grant ERBFMRXCT960090.